A METHOD OF RECOVERING CHROMITE FROM TAILINGS OF CHROME ORE BENEFICATION (COB) PLANT

摘要

This invention relates to a method of recovering chromite from tailing of chrome ore beneficiation (COB) plant comprising the steps of; (a) obtaining coarse scavenger tilings (-0.5+0.1)mm (CST) , fine seavenger tailing (-0.l+0.038)mm (FST) and slime (-0.038mm to 0.025mm) form chrome ore beneficiation plant tailings; (b) subjecting said CST to classification to get coarser fraction (+0.15mm) and finer fraction (below 0.15mm); (c) combining the finer fraction (from above below 0.15mm) with said FST and slimes for further processing; (d) passing the combined material form step (c) through bydrocyclones for separation at 0.015 mm into coarser and finer fractions (below 0.01mm); (e) subjecting the coarse fraction to gravity separation in two stages, concentrates (+0.015mm) from first stage being further upgraded in two stages; (f) treating the concentrate (heavier fraction) from said second stage of gravity separation to a magnetic separation for reducing the iron content; (g) collecting the non-magnetic fraction from the magnetic separator for obtaining the final product of 46% to 48% Cr2 O3.